From 96cf776f8171c6d3aa4749a831ee73c3548545f1 Mon Sep 17 00:00:00 2001
From: obscuren <geffobscura@gmail.com>
Date: Wed, 1 Apr 2015 17:45:38 +0200
Subject: [PATCH] Check stack for BALANCE. Closes #622

---
 core/vm/gas.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/vm/gas.go b/core/vm/gas.go
index 2d5d7ae18..bfcf75149 100644
--- a/core/vm/gas.go
+++ b/core/vm/gas.go
@@ -142,7 +142,7 @@ var _baseCheck = map[OpCode]req{
 	MSIZE:        {0, GasQuickStep, true},
 	GAS:          {0, GasQuickStep, true},
 	BLOCKHASH:    {1, GasExtStep, true},
-	BALANCE:      {0, GasExtStep, true},
+	BALANCE:      {1, GasExtStep, true},
 	EXTCODESIZE:  {1, GasExtStep, true},
 	EXTCODECOPY:  {4, GasExtStep, false},
 	SLOAD:        {1, GasStorageGet, true},